Ali Shubbar and  Hasanain Alwan and  Ee Yu Phur and  John McLoughlin and  Ameer Al-khaykan ,  Studying the Structural Behaviour of RC Beams with Circular Openings of Different Sizes and Locations Using FE Method.   journal   = {International Journal of Structural and Construction Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2017, vol. 127(7). 916 - 919
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10007518.